A bucket made of plastic does not rust like a bucket made of iron. Why?
A bucket made of plastic does not rust like a bucket made of iron. This is because plastic is a non-reactive material, which does not react with water and oxygen.
Therefore, plastic buckets do not rust.
Copper sulphate is a fungicide usally applied on to rubber plants in agriculture. A farmer made copper sulphate solution in an iron bucket and kept it over night. Does he do a proper job? Why?